export default {
	"title": '计算机网络技术_在线3',
	"testId": '51551',
	"praxiseList": [
		{
			"id": 62701,
			"title": "在OSPF的启动过程中：第2阶段是：",
			"options": "[\"交换状态\",\"全（full）状态\",\"加载状态\",\"双向（two-way）状态\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62702,
			"title": "下面哪条命令不能很清晰的判断路由的连通性：",
			"options": "[\"ping\",\"traceroute\",\"show ip protocol\",\"show ip route\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62703,
			"title": "要在地址为192.168.255.1/27的接口上运行OSPF，并将其加入到区域0中，可使用哪个network命令？",
			"options": "[\"network 192.168.255.0 0.0.0.0 area 0\",\"network 192.168.255.1 0.0.0.255 area 1\",\"network 192.168.255.1 0.0.0.31 area 0\",\"network 192.168.255.1 255.255.255.224 area 0\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62704,
			"title": "下列关于PPP协议的说法哪个是正确的( )。",
			"options": "[\"PPP协议是一种NCP协议\",\"PPP协议与HDLC同属广域网协议\",\"PPP协议只能工作在同步串行链路上\",\"PPP协议是三层协议\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62705,
			"title": "在路由器上进行广域网连接时必须设置的参数是( )。",
			"options": "[\"在DTE端设置clock rate\",\"在DCE端设置clock rate\",\"在路由器上配置远程登陆\",\"添加静态路由\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62706,
			"title": "在路由器上进行广域网连接时必须设置的参数是( )。",
			"options": "[\"在DTE端设置clock rate\",\"在DCE端设置clock rate\",\"在路由器上配置远程登陆\",\"添加静态路由\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62707,
			"title": "下列所述的协议中，哪一个不是广域网协议？( )",
			"options": "[\"PPP\",\"X.25\",\"HDLC\",\"RIP\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62708,
			"title": "思科设备上，标准访问控制列表的数字标识范围是( )。",
			"options": "[\"1-50\",\"1-99\",\"1-100\",\"1-199\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62709,
			"title": "标准访问控制列表以( )作为判别条件。",
			"options": "[\"数据包的大小\",\"数据包的源地址\",\"数据包的端口号\",\"数据包的目的地址\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62710,
			"title": "下面哪个操作可以使访问控制列表真正生效。",
			"options": "[\"将访问控制列表应用到接口上\",\"定义扩展访问控制列表\",\"定义多条访问控制列表的组合\",\"用access-list命令配置访问控制列表\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62711,
			"title": "标准访问控制列表应被放置的最佳位置是在( )。",
			"options": "[\"越靠近数据包的源越好\",\"越靠近数据包的目的地越好\",\"无论放在什么位置都行\",\"入接口方向的任何位置\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62712,
			"title": "NAT不支持的数据流类型是( )",
			"options": "[\"NTP\",\"HTTP\",\"TFTP\",\"SNMP\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62713,
			"title": "在NAT术语中,用来代替一个或者是多个本地IP的公有IP地址的是( )",
			"options": "[\"内部本地地址\",\"内部全局地址\",\"外部本地地址\",\"外部全局地址\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62714,
			"title": "Tom的公司申请到5个IP地址，要使公司的20台主机都能联到INTERNET上，他需要防火墙的那个功能？",
			"options": "[\"假冒IP地址的侦测\",\"网络地址转换技术\",\"内容检查技术\",\"基于地址的身份认证\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62715,
			"title": "哪些不是网络地址转换的优点？",
			"options": "[\"避免了重新给网络分配地址\",\"避免了给IP网络提供IP地址\",\"通过在转换复用地址，可以节省地址空间\",\"通过隐藏内部网络地址提高了网络的安全性\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62716,
			"title": "NAT(网络地址转换)的功能是什么？( )",
			"options": "[\"将IP协议改为其它网络协议\",\"实现ISP（因特网服务提供商）之间的通讯\",\"实现拨号用户的接入功能、\",\"实现私有IP地址与公共IP地址的相互转换\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62717,
			"title": "在NAT术语中, 外部网上的主机在本地网络上所显示的IP地址是( )",
			"options": "[\"内部本地地址\",\"内部全局地址\",\"外部本地地址\",\"外部全局地址\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62718,
			"title": "如果企业内部需要连接入Internet的用户一共有400个，但该企业只申请到一个C类的合法IP地址，则应该使用哪种NAT方式实现( )。",
			"options": "[\"静态NAT\",\"动态NAT\",\"PAT\",\"TCP负载均衡\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62719,
			"title": "网络端口地址转换(PAT)是( )",
			"options": "[\"把内部的大地址空间映射到外部的小地址空间\",\"把外部的大地址空间映射到内部的小地址空间\",\"把内部的所有地址映射到一个外部地址\",\"把外部的所有地址映射到一个内部地址\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62720,
			"title": "网络端口地址转换(PAT)的好处是( )。",
			"options": "[\"可以快速访问外部主机\",\"限制了内部对外部主机的访问\",\"增强了访问外部资源的能力\",\"隐藏了内部网络的IP配置\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62721,
			"title": "目前普通家庭连接因特网，通过以下设备可以实现上网漫游，按传输速率（由低到高）顺序为（ ）（ ）（）（ ）。",
			"options": "[\"FDDI\",\"ADSL\",\"ISDN\",\"调制解调器\"]",
			"answer": "[1,2,3,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62722,
			"title": "目前普通家庭连接因特网，按传输速率（由低到高）顺序，通过以下设备可以实现网上漫游：（）、（ ）、（ ）和（）。",
			"options": "[\"FDDI\",\"ADSL\",\"ISDN\",\"调制解调器\"]",
			"answer": "[1,2,3,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62723,
			"title": "根据网络的作用范围，可以将计算机网络分为（ ）",
			"options": "[\"LAN\",\"WAN\",\"MAN\",\"WLAN\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62724,
			"title": "服务集SSI是（）",
			"options": "[\"标示无线设备所属的WLAN\",\"包含32个字符\",\"负责确定信号强度\",\"同一WLAN中的所有无线设备必须具有相同的SSID\"]",
			"answer": "[1,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62725,
			"title": "无线局域网需要实现移动结点的（）层功能",
			"options": "[\"物理层\",\"数据链路层\",\"网络层\",\"传输层\"]",
			"answer": "[1,2]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62726,
			"title": "新型的多功能融合信息网络包括",
			"options": "[\"计算机网络\",\"电视网络\",\"有线电话网络\",\"移动电话网络\"]",
			"answer": "[1,2,3,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62727,
			"title": "数据通信中，频带传输时可采用（ ）技术的调制解调顺；基带传输的编码方式可采用（ ）；脉冲编码调制可采用（ ）技术；多路复用时可采用（ ）方法。",
			"options": "[\"差分PCM\",\"相移键控法PSK\",\"差分曼彻期特编码\",\"CRC\",\"FDM。\"]",
			"answer": "[1,2,3,5]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62728,
			"title": "按照通信距离和作用范围，计æºç½ç»åä¸º",
			"options": "[\"å¹¿åç½\",\"ååç½\",\"å±åç½\",\"å ç¹ç½\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62729,
			"title": "å±äºäºå±åè®®çæ¯ï¼ï¼ã",
			"options": "[\"PPP\",\"HDLC\",\"IP\",\"TCP\"]",
			"answer": "[1,2]",
			"type": "muti",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62730,
			"title": "å±åç½ä½¿ç¨çåç»çº¿ä¸»è¦æä¸¤ç§ç±»åï¼åå«æ¯ï¼ï¼åï¼ï¼",
			"options": "[\"STP\",\"ETP\",\"GRP\",\"UTP\"]",
			"answer": "[1,4]",
			"type": "muti",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 62731,
			"title": "æ°å­è°å¶çä¸ç§åºæ¬å½¢å¼ï¼ç§»å¹é®æ§æ³ASKãç§»é¢é®æ§æ³FSKãç§»ç¸é®æ§æ³PSKã",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62732,
			"title": "æ°å­ä¿¡å·å¯ä»¥ç´æ¥éç¨åºå¸¦ä¼ è¾ãåºå¸¦ä¼ è¾å°±æ¯å¨çº¿è·¯ä¸­ç´æ¥ä¼ éæ°å­ä¿¡å·ççµèå²ï¼å®æ¯ä¸ç§æç®åçä¼ è¾æ¹å¼ï¼è¿è·ç¦»éä¿¡çå±åç½é½éç¨åºå¸¦ä¼ è¾ã",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62733,
			"title": "ææç»æçéæ©å¾å¾ä¸ä¼ è¾åªä½çéæ©ååªä½è®¿é®æ§å¶æ¹æ³çç¡®å®ç´§å¯ç¸å³",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62734,
			"title": "æ¥æäº¤æ¢ï¼å¨æ°æ®ä¼ è¾ä¹åå¿é¡»åè®¾ç½®ä¸æ¡å®å¨çéè·¯ãå¨çº¿è·¯æé¤(éæ¾)ä¹åï¼è¯¥éè·¯ç±ä¸å¯¹ç¨æ·å®å¨å ç¨ãçµè·¯äº¤æ¢æçä¸é«ï¼éåäºè¾è½»åé´æ¥å¼è´è½½ä½¿ç¨ç§ç¨ççº¿è·¯è¿è¡éä¿¡ã",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62735,
			"title": "ææä»¥å¤ªç½äº¤æ¢æºç«¯å£æ¢æ¯æ10BASE-Tæ åï¼åæ¯æ100BASE-Tæ åãï¼ ï¼",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 62736,
			"title": "å¼æ¾ç³»ç»äºè¿åºæ¬åèæ¨¡åæ¯ç±å½éæ ååç»ç»(ISO)å¶å®çæ ååå¼æ¾å¼è®¡ç®æºç½ç»å±æ¬¡ç»ææ¨¡åã",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "æ ",
			"regtime": "2021-02-25 14:09:08",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
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